07 Road King classic crank case problem
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Cruiser
Joined: Apr 2018
Posts: 123
Likes: 8
From: Ohio
Torque
is this the correct touque spec for the pipe plug on the bottom of the case for the sump ???Ive heard stories of people cracking the crank case by removing this and reinstalling it. Are there any special instructions on doing this safely
Road Captain
Joined: Apr 2010
Posts: 686
Likes: 349
From: Central Utah
I pulled that plug inadvertently when I first got my bike. Then I got the manual after that. I used Teflon tape and tightened it up but not using an impact (ha!). Tighten it according to that spec. The pipe plug screw is steel but the case is aluminum and that’s why they crack when; 1) overtightened, and 2) then heated up from normal operating temps...cuuuhraack.
That spec is for your bike yes?
That spec is for your bike yes?
Use sealer on it and just snug it. Its a pipe plug into an aluminum case. If youre going to torque it use the 120 lb/in spec. NOT lb/ft. Dont make that mistake.
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Cruiser
Joined: Apr 2018
Posts: 123
Likes: 8
From: Ohio
Manual specs
Thanks and Yes thats the spec per my manual. Ive been scared to touch that thing after a mechanic at a local shop told me not to over tighten it Ill crack my case. I just wanted to make sure that was the correct torque spec for that specific plug. Thanks Ed I would definitely have a problem if I went ft/lbs.I am the guy that thinks thing should be tightened more. So I should probably use that spec...lol
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Cruiser
Joined: Apr 2018
Posts: 123
Likes: 8
From: Ohio
Head bolts
Can anybody tell me if the head bolts are tourqe to yield and need replaced.? The manual doesnt say anything about replacing them that I can find. Seems to be most head bolts are anymore atleast on cars. Thanks
Club Member
Joined: Mar 2016
Posts: 11,687
Likes: 22,232
From: Clearwater, Idaho
Nope. Reuse them.
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Cruiser
Joined: Apr 2018
Posts: 123
Likes: 8
From: Ohio
Head gasket
I need to clarify head gasket thickness. The James gasket kit that I got from the local dealer has .030 head gaskets there are .046 and There are MLS. Which do you guys recommend in my situation?
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,893
Likes: 8,001
From: poway
You will like get different opinions on this but if the bike is stock, go with the same thickness as stock. (which I suspect is somewhere around 0.050). When doing performance stuff, I set squish to 0.030-0.040 with a bias to the tight side. Reasoning for leaving it close to stock is that you don't need to retune. It may not make any difference tho,
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Cruiser
Joined: Apr 2018
Posts: 123
Likes: 8
From: Ohio
Gaskets
Thanks Max. Yeah Its a .046 is the other option.Im not sure what the MLS thickness is. Thats just a multi layer correct?Im just going to buy the .046. I do not want to tune and at this point unfortunately Im spending my tuner money on rebuilding the top end of the bike over a stupid mistake.I just have to laugh it off
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